You should just buy a STAR TREK novel, or find one used. They are essentially the same thing as Fan Fiction, anyway. Only a little less raw ...

Not quite. Trek novels do have a generally higher standard, but they're subject to CBS' rules. In the fanfic world, anything can happen (which unfortunately means a million K/S fics, but can otherwise lead to some interesting situations you'd never find in the Expanded Universe or on TV/film)